In real‑world power distribution projects, the 80kVA unit is a classic small‑capacity transformer sitting between 63kVA and 100kVA. Many design engineers prefer this model for reasonable power margin. It avoids over‑investment from oversized capacity and reserves space for future moderate load growth. In numerous rural upgrade projects we served, original 63kVA transformers often trigger overload alarms during peak evening or farming‑season power consumption, while stepping directly up to 100kVA brings extra budget pressure. Under such circumstances, 80kVA turns out to be a balanced and reliable choice.
This S13‑M‑80/10 oil‑immersed distribution transformer features rated voltage 10±2×2.5%kV/0.4kV, vector group Dyn11 and 4% short‑circuit impedance for 50Hz power grid. It is built with oxygen‑free copper windings, delivering far better short‑circuit withstand performance versus aluminum‑wound alternatives. The core adopts high‑permeability grain‑oriented silicon‑steel sheets with step‑lap stacking. From our actual workshop test, no‑load heat generation is considerably reduced under identical working conditions. Designed with corrugated fully‑sealed oil tank and ONAN cooling without conservator, it performs remarkably well for pole‑mount outdoor service. Rain and humid air are largely kept out of the tank, lowering the risk of insulation deterioration.
Key operational parameters: no‑load loss 130W, load loss 1700W, no‑load current 1.1%. Total weight around 485 kg, insulating oil filling weight 145 kg. Overall dimension 780×740×1060 mm, mounting gauge 400×400 mm. Standard accessories include off‑circuit tap‑changer, pressure relief valve, oil‑level indicator and gas relay. One of our batch deliveries for mountain villages has been running under open‑air harsh weather, maintaining noise below 52 dB with minimum on‑site maintenance work.
Based on our field cases, it fits rural power stations, small workshops, temporary construction‑site power supply, clustered mini‑PV systems and residential branch distribution. It can be pole‑hung or assembled inside box‑type substations. From project experience, when actual load fluctuates within 50‑70kVA, 80kVA brings better value than 100kVA both on capital expenditure and running loss. The unit complies with GB1094 and GB20052 standards.
Hot Tags: 80kva oil-immersed transformer, China 80kva oil-immersed transformer manufacturers, suppliers, factory, 25 kva pole mounted transformer, 7 2KV 13 8KV 34 5 KV Pole Mounted Transformer, 7 2KV Pole mounted Transformer, pmt transformer, single phase pole transformer, single pole mounted transformer
